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Fix the output of df.describe on an empty categorical / object column #26474

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Merged
merged 10 commits into from
Jun 1, 2019
Merged

Fix the output of df.describe on an empty categorical / object column #26474

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d35c39a
BUG: Ensure that top and freq are reported as None for empty dataframes
enisnazif May 19, 2019
e7a7bdf
BUG: Ensure that the index values obtained when calling describe on a…
enisnazif May 20, 2019
10df157
BUG: Ensure that the index values obtained when calling describe on a…
enisnazif May 20, 2019
1c7b6d1
BUG: Ensure that the index values obtained when calling describe on a…
enisnazif May 20, 2019
302b28c
BUG: Ensure that the index values obtained when calling describe on a…
enisnazif May 26, 2019
65b1cc9
Add entry to api_breaking section for 0.25.0
enisnazif May 26, 2019
41a9c36
Update v0.25.0.rst
enisnazif May 30, 2019
55702b2
fixup
TomAugspurger May 30, 2019
8021619
Merge remote-tracking branch 'upstream/master' into enisnazif-fix-emp…
TomAugspurger May 30, 2019
7100855
Merge remote-tracking branch 'upstream/master' into enisnazif-fix-emp…
TomAugspurger May 31, 2019
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BUG: Ensure that the index values obtained when calling describe on a… 
…n empty Categorical / Object column is the same as that of an non empty column
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@enisnazif
enisnazif committed May 20, 2019
commit 1c7b6d1b830819c0c3cdba98f284ce79376b6e99
2 changes: 1 addition & 1 deletion pandas/core/arrays/categorical.py
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Expand Up @@ -1477,7 +1477,7 @@ def value_counts(self, dropna=True):

if dropna or clean:
obs = code if clean else code[mask]
count = bincount(obs, minlength=ncat or None)
count = bincount(obs, minlength=ncat or 0)
else:
count = bincount(np.where(mask, code, ncat))
ix = np.append(ix, -1)
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